Math Test 1

On Saturday afternoon, Armand sent m text messages each hour for 5 hours, and Tyrone sent p text messages each hour for 4 hours. Which of the
following represents the total number of messages sent by Armand and Tyrone on Saturday afternoon?

Kathy is a repair technician for a phone company. Each week, she receives a batch of phones that need repairs. The number of phones that she has left to fix at the end of each day can be estimated with the equation P= 108 − 23d, where P is the number of phones left and d is the number of days she has
worked that week. What is the meaning of the value 108 in this equation?

Which of the following is equivalent to the expression above?

h= 3a + 28.6

A pediatrician uses the model above to estimate the height h of a boy, in inches, in terms of the boy’s age a, in years, between the ages of 2 and 5. Based
on the model, what is the estimated increase, in inches, of a boy’s height each year?

The formula above gives the monthly payment m needed to pay off a loan of P dollars at r percent annual interest over N months. Which of the
following gives P in terms of m, r, and N ?

What is the solution (x ,y,) to the system of equations above?

For the function g defined above, a is a constant and g(4) = 8. What is the value of g(−4)?

In the equations above, b and c represent the price per pound, in dollars, of beef and chicken, respectively, x weeks after July 1 during last summer. What was the price per pound of beef when it was equal to the price per pound of chicken?

A line in the xy-plane passes through the origin and has a slope of  . Which of the following points lies on the line?

If x >3 , which of the following is equivalent to

?

If   for all values of x, and a + b = 8, what are the two possible values for c ?